System for projecting light in variant colors



Aug. 16, 1932..

I c. W. HOUGH SYSTEM FOR PRO-TESTING LIGHT IN VARIANT COLORS Filed Jan.24. 1930 9 Sheets-Skieei; 1

INVENTOR Clinton W Hough.

ATTORNEY Aug. 16, 1932. c. w. HOUGH 1,871,794

SYSTEM FOR PROJECTING LIGHT IN VARIANT COLORS Filed Jan. 24, 1930 9Sheets-Sheet 2 I INVENTOR C/znton WHough.

ORNEY Aug. 16, 1932.1 c. w. HOUGH 1,871,794

. SYSTEM FOR PROJECTING LIGHT IN VARIANT COLORS Filed Jan. 24.. 1950 9Sheets-Sheet 5 E-E- El III II lI/l/Il/L [III/V I/III II INVENTOR ClintonW Haugh.

ORNEY Aug. 16, 1932. c. w. HOUGH 1,8715794 SYSTEM FOR PROJECTING LIGHTIN VARIANT COLORS Filed Jan. 24, 1930 9 Sheets-Sheet 7 2a; ELI-Ir. 17

' H5 15 FEE--15 TTORNEY Aug.- 16, 1932. 1,871,194 I SYSTEM FORPROJECTING LIGHT IN VARIANT COLORS C. W. HOUGH Filed Jan. 24, 1930 28 [IH I INVENTOR r Clinton W Hough.

TTORNEY Aug. 16, 1932. c. w. HOUGH 1,371,794 SYSTEM FOR PRQJECTING LIGHTIN VARIANT COLORS Filed Jan; 24, 1930 E l'Er. 1 5

9 Sheets-Sheet 9 EEG EU INVENTQR Clinton W [f ugh- BY WW ATTORNEYPatented Aug. 16, 1932 UNITED STATES PATIENT OFFICE CLINTON W. HOUGH,OFNEW YORK, N. Y., ASSIGNOB 1'0 WIRED RADIO, INC., 01' NEW YORK, N. Y.,A CORPORATION OF DELAWARE SYSTEM FOR PROJEGTING LIGHT IN VARIANT COLORSApplication filed January a. 1930. Serial 1%. 423,004.

-- duce color and form combinations for educational and entertainmentpurposes.

Another object comprises, producing a projector system in which thecolors of a plurality of overlapping beams of light are automaticallyvaried to produce upon a screen or objects either stationary or moving agreat variety of color combinations.

Another object contemplated by my invention consists in providing aprojector system which may be both manually and automatically controlledto project overlapping beams of light of variant colors to producethrough manual and automatic control a very great variety of colorcombinations.

Another object consists in providing a projector system in whichoverlapping beams of light of variant colors are transmitted through oneor more pattern screens in motion or stationary to produce colored pat-'terns of an infinite variety of color, form, and relative intensities,which may serve as design for fabrics, wall paper, and the like.

I accomplish the above desirable features and effects by a novelprojector system in which a plurality of light projectors areindividually controlled, either manually or automatically, or incombination, to control the colors and intensity of the light projectedby each of such projectors in such manner as to produce beams of variantcolored light overlapping in one of a plurality, or in a plurality ofplanes to produce an infinite variety of color and form combinations andefiects, and to give the effect of motion to the multi-colored shadowsof pattern screens or objects interposed between the projectors and ascreen upon which the light is projected.

In the drawings accompanying and form- F ing a part of the specificationand in which like reference numerals designate corresponding partsthroughout:

Fig. 1 is a perspective view of the general arrangement of the apparatusemployed in an embodiment of my invention, comprising, a projectionmachine, a pattern machine, an object supporting turntable, and ascreen.

' Fig. 2 is a horizontal sectional view along the line 22 of Fig. 3 ofthe said projection machine.

Fig. 3 is a vertical sectional view along the line 3--3 of Fig. 2.

Fig. 4 is a partial horizontal sectional view along lined-4 of Fig. 3.

Fig. 5 is a partial vertical sectional View along the line 5-5 of Fig.2.

Fig. 6 is a top plan view of an arrangement of keys and key leversemployed in the said projection machine.

Fig. 7 is a lon itudinal sectional view along the line 77 o Fig. 4.

Fig. 8 is a vertical sectional view of an arrangement of certainmechanical elements of the said projection machine.

Fig. 9 is a vertical sectional view corresponding to the view shown inFig. 8 but illustrating the same mechanical elements in difierentrelative positions,

Fig. 10 is a front elevation of a rotary color screen employed in thebefore mentioned pro- Jection machine.

Fig. 11 is a side elevation and partial sectional view of the rotarycolor screen shown in Fig. 10.

Fig. 12 is a front elevation of a light intercepting device employed inthe said projection machine.

Fig. 13 is an elevation of a distorting lens alsoemployed in the saidprojecting machine.

Fig. 14 is a partial top plan view of the distor-ting lens shown in Fig.13.

Fig. 15 is a longitudinal sectional view of a kaleidoscopic tubeemployed in the said projection machine.

Fig. 16 is an end elevation of the kaleidoscopic tube shown in Fig. 15.v

Fig. 17 is a sectional view of the pattern machine before mentioned andshown in Fig. 18 is a diagrammatic representation of the electricalcircuits and electrical apparatus as used in the embodiment of myinvention described herewith.

Fig. 19 is a schematic representation of a method of light projectionemployed in my invention.

Fig. 20 is a schematic representation of an arrangement of projectorswhich is a part of my invention.

Referring to the drawings in detail, and particularly to Fig. 1, in thehousing 1, which is a part of the projection machine, means are disposedfor projecting a plurality of varient colored beams of light on a screen2. Interposed in the path of these beams there is provided a patternmachine 3, and an object supporting turntable 4, either, or both, ofwhich may be used, at the option of the operator, to define and afiectthe variant colored light beams in a way such as to cause a greatvariety of different shapes and shadows to be cast upon the screen 2.

The housing 1 is mounted upon supporting members, there being four inall, one at each corner of the housing, three of these supportingmembers 5, 6, and 7 being shown in Fig. 1. Centrally disposed betweenthese supporting members, and beneath the housing 1, are threecompartments 8, 9, and 10, which form a com ponent part of theprojection machine, and which contain, respectively, a complete radioreceiving set with auxiliary stages of audio frequency amplification, acomplete reproducing phonograph of the type which employs an electricalpick-up device for reproducing sound recordings'through the agency of aloud speaker, and a loud speaker which is common to both of theforegoing. These sound reproducing devices are provided for the purposeof furnishing sound efiects, principally music, to accompany sympatheticvisual effects which are cast upon the screen 2, and also for thepurpose of altering these visual effects in accordance with the rhythmand intensity of the sound effects in a manner hereinafter described.

An extended part 11 of the housing 1 is provided on that side of thehousing 1 which normally faces the operator. Positioned in this extendedpart'll of the housing 1 is a keyboard 12 outwardly similar inconstruction to the keyboard to be found in an ordinary piapoforte.Positioned on the'extended part 11 of the housing 1, and above thekeyboard 12, is a remote control panel 13 for operating and controllingthe radio broadcast receiver contained in the compartment 8. Alsopositioned upon the extended part 11 of the housing 1 are knobs 14, 15,16, 17, 18, 19, 20, 21, 22, 160, and 192 operating controlling elementsmore fully described later. Additional knobs 25, 26, 27, 28,29, 30, 31,32, 33, 34, 35, 36, 37, 3s, 39, 4.0, 4.1, 42, and 4.3 for operatingcontrolling elements are positioned upon the-panel 24. Extending throughconstructed so as to completely enclose the path of the variant coloredlight beams and prevent extraneous light from being reflected from thepattern machine 3. Such extraneous reflected light has a tendency todilate the irises of the observers eye and is therefore undesirable.

The object supporting turntable 4 essentially comprises a platform'51, ashaft 52, a worm 53, a worm gear 54, a shaft 55, a driving motor 56, anda mounting structure 57. The platform 51 is rigidly secured to one endof the shaft 52 as shown. The shaft52 is mounted in a bearing member 58of the mounting structure 57, and also in a depression 59 in themounting structure 57 so that the shaft 52 is free to rotate therein.The worm gear 54 is rigidly secured to the shaft 52 in a position toengage with the worm 53 which is rigidly mounted upon the shaft 55extending from the driving motor 56. The driving motor 56 is secured tothe mounting structure 57. Rotation of the shaft 55 will face suitablefor showing light projections to best advantage, and is similar toscreens employed in cinematographic projection. Supporting standards 60,61, and 62 are provided for the screen 2, the object supportingturntable 4, and the pattern machine 3, respectively. Cables 63 and 257are provided between the housing 1 and a driving motor 258 in thepattern machine 3, and between the housing 1 and the driving motor 56 inthe object supporting turntable 4, respectively, so that the electricalcircuits of the same may be controlled from the housing 1.

In Fig. 2, disposed within'a-compartment 76 enclosed by four panels 67,68, 69, and 24,

of the housing 1, are three rows of projectors q of relatively strongwhite light, from an electric current, and projecting the same in di-'rected beams to points distant from thesource. Positioned in front ofprojectors 66, 65, and 64 are rotary color screens 70, 71, and 72,respectively, which revolve in the path of the light beam from eachprojector. Also disposed within the compartment 76 are three housings73, 7 4, and 75 associated with manually operated color screens.

In compartment. 77, enclosed by the panels 67, 69, 24,, and 79, arepositioned means for actuating a distorting lens, more fully describedlater. 1

In compartment 78, enclosed by the panels 67, 68, 24, and 80, arepositioned members associated with a kaleidoscopic projectionarrangement more fully described later.

In Fig. 3, disposed within the compartment 76 are two projectors 66 and81 which are the end projectors, respectively, of two rows of projectorsinparallel planes. The members 82 and 83, which are extended parts ofprojectors 66 and-81, respectively, are forked and ivotally mounted uponmembers 84 and 85 by means of rivets86' and 87, in a manner such thatthere will always be sufficient tension between the members 82 and 84,and the members 83 and 85, to hold the same, by fric tion, in anyrelative position in which they may be set, (See Fig. 2.) The members 84and 85-are also pivotally secured to the panels 88 and 89, by means ofstuds 90 and, 91, washers 92 and 93, and nuts 94 and 95, respectively,so thatthe members 84 and 85 may be partially rotated in parallel planesperpendicular to the plane of movement of the members 82 and 83. Such.an arrangement,permittingadjustment of the projectorsand correspondingadjustment of the direction of the light beams, is provided for eachprojector. Adjusting rods 96 and 97 are rigidly secured to theprojectors 66 and 81, respectively, and have knobs 44 and secured totheir upwa'rd extremities. These adjusting rods 96 and 97extend"throughapertures in the panel 24 so that the projectors may be adjusted, fordirection of beam projection, from without .the housing 1. Similaradjusting rods are provided for each projector.

Positioned in front of projector 81, in Fig. 3, and intercepting thepath of the light beam projected. from the same, is a housing 73 shownin section, which is one of three similar housings 7 3,74, and 75, andwhich contains an arrangement of manually controlled color screens. Thehousing 73 is mounted in an aperture in-the panel 89, so that the bottomof the housin 73 is open to mechanical elements beneath t e panel 89.Viewed from.

the top in Fig. 4, it will be seen that the housing has two side members98 and 102 which are slotted, as shown, to accommodate a series of colorscreens 99, 100, and 101, similar mechanical elements being associatedwith each of the three housings 73,74, and 75, more fully described lateIn Fig. 3-, positioned in front of projectors 66 and 81, are rotarycolor screens 7 0 and 103, respectively. These rotary color screens aresubstantially discs comprising sectors of transparent material, such asglass, which have been variantly colored to act as filters whichwill, ineffect, pass only light of the same coloras the filter. When a beam ofwhite lightflis projected through one of the colored sectors of therotary color screen, and

the rotary color screen is rotated in a manner such that successivecolored sectors will intercept the'light beam, the light beam, uponpassing through the colored'sectors, will be substantially of a seriesof colors corresponding to those in the rotary color screen. In Fig. 10,the variantly colored sectors 104, 105, 106, and 107, of the rotarycolor screen 103, are radially positioned about thehub 109 of a circularmounting frame 108. A hole 110 is provided in the center of the hub 109for mounting upon a shaft. An additional 001- l ored sector 111 ispositioned in a mounting sector 112 which is adapted to be rotated 4about an annular channel 1 n the periphery of the hub 109, as shown inFig. 11. An arm 114 is provided to one side of the member 113 which isan extension of the mounting sector 112, and will describe, in rotationupon the hub 109, a circular path concentric with the hub 109. However,the mounting sector 112 is restricted in its movement by two pins 115and 116 which are positioned'upon the periphery of the mounting frame108, on either side of the arm 114, and engage therewith. A smallhelical tension spring 117 .is provided between the mounting sector 112and the mounting frame 108 and normally holds the mounting sector 112 ina position such that the arm 114 is in engagement with stop pin 115. Ifthe mounting frame 108 is rotated clockwise, the mounting sector 112,will also be rotated in the same direction. A stopping member, if movedinto the path of the projectlon 113 so that it comes into engagementtherewith as the same is rotated, will stop mounting sector 112, but,due to the construction of the mounting sector 112 with reference to thehub 109, will permit the mounting frame 108 to continue to'rotate untilthe arm 114 comes into engagement with the stop pin 116 when themounting frame 108 will also come to a stop. However, the mountingsector 112 will'now be in a position over the colored sector 107, andwill besuperimposed thereon, whereas there will be an opening in themounting frame 108, indicated by the dotted lines inFig. 10, andconsequently, a

beam of white light which is directed through this opening will not beintercepted by a color sector and will show white All of the rotarycolor screens employed are of the same construction.

In Fig. 4, disposed within the compartment 76 are three projectors 81,118, and 119, which are the bottom projectors of three rows ofprojectors in parallel planes, respectively, of which the projectors 66,65, and 64, in Fig. 2, are the top projectors. Positioned in front ofprojectors 119, 118, and 81, are rotary color screens 121, 120, and 103,respectively. Shafts 122, 123, and 124, upon which the rotary colorscreens 121, 120, and 103, are rigidly mounted, are positioned inbearing members 125, 126, and 127, respectively, and

are free to rotate therein. Rigidly mounted upon the shaft 122 are threepulley wheels 128,129, 130, of the same size. A pulley wheel 131, whichis somewhat larger in diameter than pulley wheels 128, 129, and 130, isrigidly mounted upon the shaft 123. Another pulley wheel 132, somewhatlarger in diameter than pulley wheel 131, is rigidly mounted upon shaft124. The rotary color screens 72, 71, and 70, shown in Fig. 2, haveshafts 139, 140, 141, bearing mountings 142, 143, 144, and pulleys 145and 146, 147, and

' 148, respectively, similarly associated therewith; pulley wheel 133,in Fig. 2, corresponding to pulley wheel 130 in Fig. 4. Positioned incompartment 134, which is disposed directly beneath compartment 78,shown in Fig.

4, is a driving motor 135. RigIdly mounted 4 upon the shaft 136extending from the driving motor 135, are two pulley wheels 137 and 138.Belts 149, 150, 151, 152, 153, 154. are provided between the pulleys137and 130, 138 and 133, 129 and 132, 128 and 131, 145 and 148, 146 and.147, respectively. These belts are preferably composed of helicallywound wire which, in transmitting power rom one pulley to another, willengage the peripheral channel of thcpulley only when thecoefficient offriction of the belt is suflicient to overcome the inertia of thepulley. Rotation of pulley wheels 137 and 138 by the driving motor 135will cause a corresponding rotation of the pulley wheels 130 and 133,respectively, by means of the belts 149 and 150. Pulley wheels 129 and128, and pulley wheels 145 and cause a sequence of variant coloredlight,

beams to be projected. However, difference in the size of the pulleywheels associated with the rotary color screens will cause a variationin the speed at which they will rotate,

' and a corresponding variation in the time which each rotary colorscreen will require for one rotation in the path of the light beams. Ashaft 155, in Fig. 3, is mounted in the bearing member 156 and is freeto rotate therein. Rigidly secured to the shaft 155 is a worm gear 157(see Fig. 4). Two stopping arms 158 and 159 are rigidly secured to theshaft 155 on either side of the worm gear 157 and positioned so thatpartial rotation of the shaft 155 will bring the stopping arms 158 and159 into engagement with the member 113 of the mounting sector 1'12associated with each of the rotary color screens 70, 71, 72, 103, 120,and 121 as the same are rotated. However, the stopping arms 158 and 159are so shaped that upon being partially rotated by the shaft 155, theywill come into engagement first, with members 113 associated with rotarycolor screens 71 and 120, second, with members 113 associated withrotary color screens and 103, and third, with members 113 associ atedwith rotary color screens 72 and 121. A knob 160, in Fig. 4, mounted inthe extended part 11 of the housing 1 so that it is free to rotatetherein, is coupled to a flexible shaft 161 which is in turn coupled toan extended part of a worm 162 which is mbunted in the -bearing member156 so that it is free to rotate therein. Rotation of the knob 160 willcause the worm 162 to rotate, by means of the flexible shaft 161, andthe worm 162, being in engagement with the worm gear'157, will cause thesame to move the stopping arms 158 and 159 in or out of engagement withthe members 113 associated with the rotary color screens as the same arerotated.

Inasmuch as the stopping arm 158 is positioned so that it is accessibleto the top of rotary color screens 103, 120 and 121, and the stoppingarm 159 is positioned so that it is'accessible to the bottom of rotarycolor screen 70, 71, and 7 2, it is evident that the members 113 (seeFig. 10) associated with the said rotary color screens will beaccessible for engagement with the stopping members 158 and 159 in thesame relative positions.

If, while the rotary color screens are being normally rotated in aclock-wise direction by the driving motor 135 and periodically changingthe color of light beams from their re-- speotive projectors, it isdesired to project beams of substantially white light, the knob 160 isrotated. Such rotation of the knob 160 will cause the stopping arms 158and 159 to be slowly moved so that they will come into engagement withfirst, the members 113 associated with the rotary color screens 70 and103,second, with members 113 associated with the rotary color screens 71and 120, and third, with'the members 113 associated with the rotarycolor screens 72 and 121, as the same are rotated. Such engagement ofthe members 113 associated with the said rotary colon screens will causethe mounting sectors 112, associated with each of the said rotary colorscreens, and upon which the members 113 are positioned, to stoprotating. As these sector mountings 112 are stopped, the rotary colorscreens will also be stopped, in the order before mentioned, as the stoppins 116 associated with each rotary color screen are rotated intoengagement with the arms 114 associated with the now stationary mountingsectors 112, and an opening in each color screen, shown in Fig. 10, bydotted lines, will be presented before each projector, while light beamsoriginating from each projector will pass through withoutbeingintercepted by a color sector. When the rotary color screens arestopped, the belts, which normally frictionally engage with the pulleysassociated with the, color screens, will slip, but due to the order inwhich the rotary color screens are stopped, the shafts 139 and 122 andassociated pulleys,

which intermediately drive the rotary color screens 7 0, 71, 103, and120, will be the last to be stopped and will consequently serve to restand the belts 149 and 150 will slip thereassoc ate with each of on asthey are driven by the driving motor 135. The driving motor 135 may thenbe shut down. if desired, as hereinafter provided for. Starting themotor 135, and bringing the arms 158 and 159 out of engagement with themembers 113 associated with the rotary color screens, by rotating theknob 160, will cause the rotary color screens to resume their normalrotation in the path of the projectors.

In Fig. 6, the keys-1 63, 164, and'165, of a group which forms apart ofthe keyboard 12, are shown as they are positioned with reference totheir respective key levers 166, 167, and 168. The entire keyboard 12,which is of the commonly .used pianoforte type, is arranged into threegroups of twelve keys corresponding to the twelve keys comprising anoctave on the pianoforte, each group being arranged similarly to Fig. 6so that the twelve keys of each group have twelve corresponding kevlevers for actuating. respectively, mechanical elements, hereinafterdescribed,

the color screen housings 73. 74. and 75.

In Fig. 7. a series of push rods 169, 170, and 171. are slidablypositioned in the bottom of the housing 74, which is similar inconstruction to housing 73 in Fig. 3, so that th ev transmit motionfromthe key levers 166, 167. and 168 to corresponding. color screensslidablv positioned in slots in the side memsuch as glass, which havebeen variantly col- "ored to act as filters which will, in efiect, passof the light beam from their associated projector, as illustrated inFig.8 by color screen 99 which is shown in such raised position. Thepush rod 169, the key lever 166, and the key 163, which are associatedwith the color screen 99, are shown in their actuated position. When anyone of the group of keys of the keyboard 12 which are associated withthe housing 7 5, is depressed, a, corresponding color screen will beraised so as to intercept the light beam from its associated projectorand affect the color of the said beam. The housings 73, 74, and 75 areall similarin construction, each housing containing twelve colorscreensand associated mechanical elements to be operated by the three groups,or octaves, of keys of the keyboard 12, in a manner such as to interceptthe light beams from the three projectors 119, 118, and 81,respectively. It is evident, then, thatthe light beams projected fromthe rojectors 119, 118, and 81 will be intercepted by their respectiverotary color screens and, at the option of the operator, by one ormoreofthe series of manuall operated color screens disposed in front 0each of the said projectors.

In Fig. 3, a shutter 176 and a color screen i 177, which are associatedwith each color screen housing, are shown pivotally mounted to the topof the housing 73 between the side 7 as glass, which has been colored toact as a ,filter, which will, in effect, pass only light of the samecolor as the filter.

(See Fig.4.) The shutter 17 6 and the color screen 177 are mounted in amanner such that in a normal position at, rest upon the ,top surface ofthe the light beam from the associated projector.

In Fig. 4, positioned in front of the housing 75, and on the sidemembers 98 and 102, are two bearing. members 172 and 17 3,"respectively. Slidably positioned in the bearing members 172and 173 arepush rods 174 and 175, respectively. Referring to Fig. 3, it Will beseen that the push rods 175 and 174 are positioned adjacent totheprojecting ends of the shutter 17 6 and the color screen 177 respecte v. Similar bearing members and housing 73, they will intercept thepath of W p push rods are associated with each of the three color screenhousings 73, 74, and 75. Referring to Fig. 8, it will be seen that thepush rod 174, which is positioned adjacent to the color screen 177, whenactuated so as to be moved into an upward position, as shown, willcorrespondingly move the color screen 177 and the shutter 17 6 which ispivotally mounted superimposed upon the color screen 17 7, so that theywill be in a position such that they will not intercept the path of thelight beam from the associated projector. Rigidly secured to the lowerextremity of the push rods 174 associated with each of the color screenhousings, and beneath the bearing members 172 and 173 are the transverselift rods 178, which, upon being moved upwardly, will correspondinglymove the two push rods 174 associated with each of the color screenhousings 73, 74 and 75. Extending beneath the transverse lift rods 178,and adjacent thereto, are the projecting ends of the key levers, ofwhich the key levers 166 and 167 form a part of a group of key leversassociated with the housing 75 in Fig. 8. As a transverse lift rod 178is similarly associated with each of the housings 73, 7 4, and 7 5, itis evident then, that if any one, or more, of the keys of the keyboard12, which are associated in groups of twelve keys with their respectivecolor screen housings, be depressed, the transverse lift rodcorresponding to the color screen housing with which the key depressedis associated will be moved upwardly with a corresponding movement ofthe shutter 17 6 and the color screen 177 associated therewith. It isevident then, that when a color screen disposed within any particularhousing, such as color screen 99 in Fig. 8, be raised upwardly by a keylever, such as key lever 166,-by means of the depressing of a key, suchas key 163, that the shutter 17 6 and the color screen 17 will also besimultaneously raised into an upward position so that the same will notinterfere with the movement of the said color screen 99, and will notintercept the path of the light beam from the associated projector.

Rigidly secured to the lower extremity of the push rods 175,associated'with each of the housings'73, 74, and 75, is a transverselift rod 179 which extends across the-front of the compartment 76, asshown in Fig. 4, and will, upon being moved upwardly, correspondinglymove all of the push rods 175 simultaneously. In Fi 8, extending beneaththe transverse lift rod 179, and adjacent thereto, is the projecting endof an arm 180 pivotally mounted upon the panel 69, by means of the pivotmember 181, so that, upon being moved, it will raise the transverse liftrod 179. Another arm 182 is pivotally mounted upon the panel 69, bymeans of the pivot members 183, as shown. One side of the arm 182 ispivotally secured, by means of a coupling pin 184, to a coupling link185, which is pivotally secured to one part of the arm 180 by means ofthe coupling pin 186. A similar arrangement of mechanical elements ispositioned on panel 68, in Fig. 4; arm 187, arm 188, and coupling link189 corresponding to arm 180, arm 182, and coupling link 185,respectively. Disposed between the arm-182 and the arm 188, andpivotally secured to both, is a coupling rod 190-which, when moved, willcause the arms 182 and 188 to move accordingly. Rigidly securedto thecoupling rod 190, at a point between the projectors 118 and 81, is a rod191 which extends through the extended part 11 of the housing 1, inwhich it is slidably positioned, and terminates in a knob 192. In Fig.8, these mechanical elements are shown in a normal unactuated position.When the knob 192 and the rod 191 are pulled into an extended position,the coupling rod 190 will be correspondingly moved so as to make theintermediate mechanical elements move the transverse lift rod 179 intoan upward position thereby raising the shutters 176 associated with eachof the color screen housings as shown in Fig. 9. It is therefore evidentthat when the transverse lift rod 179 has raised all of the shutters 176, the color screens 177 will remain in a normal position upon the topof the color screenhousings, as shown, and intercept the path of thelight beams from the associated projectors. However, when any of thecolor screens 99, 100, 101, which are disposed within the housings 73,74, and 75 are raised by their respective key levers, the associatedcolor screens 177 will also be simultaneously raised by the transverselift rods 17 8, which are adjacent to the said key levers, so that thesaid color screens 177 will not interfere with the movement of thecolor' screens 99, 100, and 101. The rod 191 and associated mechanicalelements are arranged so that when the knob 192 is extended, the saidmechanical elements will remain in the position in which they are set,it being necessary to manually depress the knob 192 to return them to anormal position and lower the shutters 17 6. The manual key-levers 166,167, and 168, and associated members will return to their normalpositions by gravity, and the keys 163, 164, and 165 will return totheir normal positions through tension of associated helical springsindicated by the spring 193 in Fig. 8 and Fig. 9.

It will now be evident that, in addition to the color changes obtainableby rotating the rotary color screens 103,120, and 121 in the path of thelight beams from the projectors 81, 118, and 119, other color changesare to be obtainedby using the keyboard 12 to manipulate the manuallycontrolled color screens contained in the housings 73, 7 4, and 75.While the rotary color screens 103, 120, and 121, in Fig. 4, arerotating in the .path of the light beams from the said pro- 5 theintermediate mechanical elements will cause the transverse lift rod179to raise the shutters 176, (see Fig.9) associated with the manuallyoperated color screen housings, so thatthe light beams may pass throughthe 'color screen housings. The color screens 177 still being in aposition to intercept the light beams, will filter the said beams inaccordance with the colors of the saidiscreens. The three color screens177, associated with the three color screen housings 7 3, 7 4, and 75,are colored, respectively, light red, green, and blue-violet, which,being the'three primary colors, will change the light beams accordingly,and, when the said light beams are originally white, will change them ina manner such that, upon convergence after leaving the said colorscreens, they will again produce white light. The manually operatedcolor screens 99, 100, and 101 may be arranged, with reference tocolors, in spectrum sequence, or any other colors, or order of colors,which may be desired.

Adjustment of rheostats controlling the electric current supply to therespective pro 30 jectors, more fullydescribed later, will cause acorresponding change in the intensities of the respective componentprimary colors of the said converged white light. Consequently, suchadjustment can be utilized to- 35 bring -the said component primarycolors to proper intensities to produce the converging white light, orcan be utilized to disproportion the intensities of the componentprimary colors, so that efi'ects other than pure white light will beproduced.

However, it is evident that when the rotary color screens are revolvingin the path of the light beams between the said projec-' tors and themanual color screens, the beams of light reaching the manually operatedcolor screens will not be white, due tothe filtering eflcct of thecolored sectors of the rotary color screens. The light beams willtherefore be additionally filtered, andKof a.

great variety and complexity of colors, which is desirable for certainpurposes. However,

, for certain other purposes, to project white light through themanually op'eraQzd color screen housings, it will be necessa-ry'to stopthe rotation of the associated rotar color screens, and open themoveable mounting sectors 112, associated with the same, so that thewhite light beams can pass, through the said rotary color screenswithout beingintercepted thereby. The said rotary color screens arestopped and their associated mounting sectors 112 opened by rotating theknob 160, in Fig. 4, as before described.

At any time while light beams are being projected-through the manuallyoperated color screen housings, whether intercepted by rotary colorscreens or*not, the keyboard 12 may be used to manipulate themanually.operated color screens so thatthey intercept the said light beamsthereby producing other and'additional color effects which are entirelymanually controlled by theoperator.

It is intended in my invention that similar manually controlled colorscreens, and associated housings and :mechanical elements, be providedfor all of the projectors, the same being here omitted for simplicity ofdescription.

Referring to Fig. 12, a housing 194 is suspended to a projectorbyj'means of an encircling band 195. 'Mounted upon ashaft 196 extendingfrom the housing 194, is an arm 197. Mounted upon the arm 197 is'asector 198 composed of a transparent material, such as glass, uponwhit-h opaque radial lines, of varying spacing, have been ruled.Positioned between the housing 194' and the arm 197, and connecting thesame, is a small helically wound tension spring 193 which normally holdsthe arm 197 against the pin 199 in the housing '194 so "that t-hepart ofthe sector 198 whereo-n the opaque lines are ruled closest willintercept the pathof the' light beam from the projector 81. Disposedwithin the housing 194 are means, such as a moving coil ammeter ormeasuring instrument, for exerting a torque 'upon the'shaft 196 inaccordance with the intensity and rhythm of an alternating electriccurrent at audio frequencies, Relative high intensities of the currentwill move the arm 197 in a manner such that the sector 198 will beentirely out of the path of the projected light beam, or willinterceptitonly at that end of the sector where the opaque lines are more widelyspaced; whereas, relatively low intensities will only slightly move thearm 197, and the sector 198 will intercept the projector light beamwhere the opaque lines are closely.

spaced. Inasmuch as the opaque lines on the Sector 198 out ofl the lightwhichthey intercept, it is evident that the most light will be cut olfwhere the opaque lines are more closely spaced, Consequently, theintensity of the light beam will vary in proportion to the-intensity ofthe current controlling the movement of the sector. 198. Rhythmicmodulations of the said current will produce corresponding nscillationsof the sector198. Adevice similar tothe foregoing is mounted upon eachprojector, so that all of the light beams will be affected in thescribed. (See Fig. 3.) a

r In Fig. 5', disposedwithin compartments 78 and 134 is apparatuscomprising a kaleidoscopic projection arrangement. A driving motor 200,in the compartment 134:, is positioned so that a worm 201, rigidlymounted on the shaft 202 extending from the drivin manner de-' motor200, engages a worm gear 203. The

;worm gear 203 is rigidly mounted upon a {shaft 204. The shaft 204 ismounted in a bearing 205 situated on'the bottom panel 206 of thecompartment 134, and extends through the bottom panel 207 of thecompartment 7 8, and is free to rotate therein. A turntable, comprising,a platform 208 composed of a transparent material, such as glass, and aperipheral retaining ring 209 is rigidly o mounted upon the shaft 204.(See Fig. 2.)

Positioned above the platform 208, in the compartment 78, is akaleidoscopic tube 210 mounted in the supporting member 211 and free torotate therein. ,A belt 212 extends from a pulley 213 rigidly mountedupon the shaft 202, through an aperture 215 in the panel 207 to a pulley214 integral with the kaleidoscopic tube 210. Rotation of the shaft 202by the driving motor 200 will cause a corresponding rotation of thetransparent platform 208 and the kaleidoscopic tube 210.

In Fig. 15 and Fig. 16, the said kaleidoscopic tube is shown in moredetail. Disposed within the tube 210 are three rectangular 5 shapedreflecting mirrors 216, 21.7, and 218 3 terns. Such an arrangement iscommonly used in ordinary kaleidoscopes.

Referring again to Fig. 5, an electric lamp 220 and reflector 221 arerigidly secured to a rod 222 which is mounted in a universal mounting223 which can be adjusted. in severalplanes. The said electric lamp 220and reflector 221 are positioned so that light rays from the electriclamp 220 will be directed through an aperture 224 in the panel 207, andthrough the transparent platform 208. A reflecting mirror 225 is rigidlysecured to a rod 226 mounted in a universal mounting 227 which can beadjusted in several planes. The reflecting mirror 225, intercepting thepath of the light directed through the transparent platform 208 at anangle of approximately forty-five degrees, will reflect the same throughthe kaleidoscopic tube 210 which is positioned approximately ninetydegrees from the axis of the path of the light directed through thetransparent platform 208. An auxiliary electric lamp 228 and reflector229 are mounted upon the mounting 230 and positioned so that the surfaceof the transparent platform 208 will be illuminated. It is evident,then, that if small objects, such as fragments of colored glass, orcolore beads, be placed upon the transparentplatform 208, theirilluminated images Wlll be reflected through the kaleidoscopic tube 210,

and, when the trans arent platform 208 and- 207. A hand nut 234 isprovided for the stud 235 so that the member 232 can be secured in anyposition in the elongated hole 233, and the lens 231 correspondinglyfocused with reference to the kaleidoscopic tube 210 and the screen 2.

In Fig, 13 and Fig. 14, a bi-convex lens 236 is positioned in a mountingring 237. The mounting ring is pivotally mounted, by

means of the pivot members 238 and 239, in a semi-circular yoke 240, thepivot member 238 extending through the yoke 240 and terminat- 1ng in apulley wheel 241 to which it is rigidly secured. Rotation of the pulleywheel 241 will cause a corresponding rotation of the mounting ring 237and lens 236 with reference to the yoke 240. The yoke 240 is rigidly'secured to a spindle 242 which extends through a pulley wheel 244 and aframe 243, and is free to rotate therein. The pulley wheel 244 isrigidly secured to the frame 243. Rigidly secured to the spindle 242 isa miter gear 245', positioned as shown. Mounted upon the yoke 240,midway between the pulley wheels 241 and 244 is a bearing block 246 inwhich a spindle 247 is rigidly secured. Mounted upon the spindle 247,and free to independently rotate thereon, are two idler pulley wheels248 and 249. A belt 250 is provided between the pulley wheels 241 and244 over. the idler pulley wheels 248 and 249. When the yoke 240 isturned upon the axes of the spindle 242, the pulley wheel 244, beingsecured to the frame 243, will remain stationary and hold the belt 250in frictional engagement therewith, whereby the pulley wheel 241 will bemade to revolve once for every revolution of the spindle 242.Consequently, the lens 236 will be simultaneously rotated about two axeswhich intersect at right angles. A miter gear 251 is mounted in theframe 243, so that it is free to rotate therein, and engages thecorresponding miter gear 245.

The frame 243 is pivotally mounted upon the support 252 by means of abolt 253, washer 254, and nut 255. The support 252 is secured,

by means of screws 256 and 257, to the panel 258 which is the bottompanel of compartd ment 77. Referring to Fig. 2, it will be seen that theframe'243 is positioned in the compartment 77 and extendsdthrough anaperture in the panel 69 so that the lens 236 intercepts the path of thelight beam from the projector 66. (See Fig. 3.) A coupling link 261 ispivotally secured to the frame 243 and to an arm 262 which is rigidlysecured to the worm gear 263. The worm gear 263 is mounted so that itrotates in engagement with a worm 264 which is mounted upon shaft 265extended from a driving motor 266. A flexible shaft 267 is connectedbetween the shaft 265 and the miter gear 251 in the frame 243 so thatrotation of the shaft 265 will cause a corresponding rotation of thegear 251. ,When the driving motor 266 rotates the worm gear 263 and thearm 262 by means of the worm 264, the coupling link 261, in followingthe rotation of the arm 262, will oscillate the frame 243 in a mannersuch that the lens 236 will move back and forth in the path of the lightbeam from the protector 66. Simultaneous with such oscillating movement,the lens 236 will be rotated, as before described, in two planes by themiter gears 245 and 251, which are mechanically connected to the shaft265 by means of the flexible shaft 267. It is evident, then, that thelens 236 will intercept the light beam from the projector 66 at a greatvariety of angles at varying positions with reference to the projector66. Consequently, the said light beam will be, in effect, continuallydistorted, and will produce a great variety of unusual effects. Asimilar distorting lens arrangement may be provided for each of theother projectors so that similar distorted effects can be produced withall of the variant colored light beams, when so desired.

In Fig; 17, which is a construction detail of the pattern machine 3, tworollers 268 and 269 are rigidly mounted upon spindles 270 and 271,respectively, which are mounted in a housing 272, as shown, and are freeto rotate therein. A pulley wheel 273 is rigidly mounted upon thespindle 270, and a spur gear 274 is rigidly mounted upon the spindle271. A shaft 275 is positionedbelow the spindle 271 in the housing 272and is free to rotate therein. Rigidly mounted upon the shaft 275 isapulley wheel 276, somewhat larger in diameter than pulley wheel 273, toone face of which there is rigidly secured the driven member 277 of asmaller than the spur gear 274, is rigidly secured to the opposite faceof the collar 278. A pin 281, rigidly secured to the collar 278, extendsthrough an elongated hole in the shaft 27 5-so that the collar 278, thespur gear 280 and the clutch member 279, associated therewith, may bemoved lengthwise on the shaft 275 and yet remain in engagement with thesame with respect to rotation. A pulley wheel 292 is rigidly mountedupon the end of the shaft 275 opposite from the pulley wheel 276. Alever 282, pivotally mounted upon the housing 272 by means of a pivotmember 283, is positioned so that one end 284 of the lever 282 willengage in a peripheral channel in the collar 278. lVhen the other end285 of the lever 282, which extends through an aperture 286 in thehousing 272, is moved, the collar 278 will be slid lengthwise on theshaft 275 and the spur gear 280 associated therewith, will be disengagedfrom the spur gear 274, and the clutch member 279 will engage with theclutch member 277, or vice versa according to the direction of themovement of the lever 282. A shaft 287, ex tending from a driving motor288 positioned in the lower part of the housing 27 2, is mounted in thehousing 27 2, as shown, and is free to rotate therein. Rigidly securedto the shaft 287 is a pulley wheel 289. Belts 290 and 291 are providedbetween the pulley wheels 273 and 276, and 289 and 292.

It is intended that patterns, such as pattransparent material upon whichvariant opaque shapes have been secured.

In starting position, the major part of the pattern will be reeled uponthe roller 268, and the mechanical elements of the pattern machine willbe in the same relative position as shown in Fig. 17. The motor 288,then, when started, will rotate the shaft 275 by means of the belt 291and the pulleys 289 and 292, so that the spur gear 280, being inengagement with the spur 274, will rotate the roller 269 in thedirection indicated by the arrow 311, winding the pattern thereon fromthe roller 268 across the intervening space and intercepting the path ofthe variant colored light beams so as to form corresponding shapes andpatterns.

lVhen the pattern has been wound as far as possible on the roller 269,the lever 282 may then be shifted so that the spur gears 274 and 280will be disengaged, and the clutch members 277 and 279 engaged, therebyrotating roller 268 in the direction indicated by the arrow 293, bymeans of the pulleys 273 and 27 6, and belt 290 associated therewith,while the roller 269 idles. The pattern, then, will be wound back on toroller 268. When the pattern has been wound as far as possible on theroller 268, the lever 282 can again be shifted, and the entire windingprocess repeated as before. However, due ,to differences in size of therotating driving elements, it is evident that the pattern will be slowlywound speed of winding directions makes it pos-' sible to quicklyre-wind the pattern after it has slowly run through in one direction.

In Fig. 18, the driving motors 56, 266, 135,

200 and 288 are connected in parallel to a suitable source of currentsupply having an input at the terminals 294. 'The motors 56, 266, 135,200 and 288, are controlled by switches 37, 41, 39, 43, and 16, and bythe rheostats 36,40, 38, 42, and 15, respectively, so that the saidmotors can be selectively stopped and started and regulated as to speed.A reversing switch 295 is shunted across the current supply line of themotor 135 so that the direction of rotation of the said motor can bereversed. The projectors 64, 65, 66, 119, 118, and 81, are connected inparallel to a suitable source of current supply having an input at theterminals 296. The projectors 64, 65, 66, 119, 118, and 81 arecontrolled by switches 26, 30, 34, 28, 32, and 35, and by the rheostats25, 29, 33,27 '31 and 18, respectively, so that the light source in eachprojector may be selectively turned off and on, and regulated as tointensity. The kaleidoscopic lamps 220 and 228 are connected in parallelto the source of current supply having an input at the terminals 296,and controlled by the switch 19 so that the said lamps can be turned onand off.

A motor generator set 297, provided as a source of electrical supply foroperation of the radio receiving set 8 and electric phonograph 9, isconnected in parallel, on the input side, to the source of-currentsupply having an input at the terminals 294, and is controlled by theswitch 22 so that the motor generator set may be stopped and started.The radio receiving set 8 and the electric phonograph 9 are connected inparallel to the output current supply of the motor generator set 297.Switches 298 and 299 are provided for selectively opening and closingthesaid current supply circuit to the radio receiving set 8 and theelectric phonograph 9. The radio receiving set 8 comprises a selectivetuning arrangement, several stages of radio frequency amplification, adetector, and several auxiliary stages of audio frequency amplification. The remote control panel 13 is electrically connected to theradio receiving set 8 by the remote control cable 312, so that theselective tuning arrangement in the radio receiving set can be operatedfrom the housing 1 of the projection machine. (See Fig. 1.) A wiredradio carrier line, a space radio antennae system, or other source ofradio fre quency signals, is connected to the input terminals 313 of theradio receiving set. The light intercepting devices 194 associated withthe projectors 64, 65, 66,119, 118, and 81, and which are actuated byaudio frequency currents, are connected in parallel to the audiofrequency output terminals 301 of the radio I receiving set 8. A loudspeaker 11) is con- 1 nected to a double pole switch 17 which is, in

turn, connected to the output terminals 30; of the electrical phonograph9, and to the audio frequency output of the radio receiving set 8,,sothat the loud speaker 10 can be alternately used for the reprmluction ofsound from either source. ltheostats 20 and 21 are provided forcontrolling the output volume of the electric phonograph 9 and the radioreceiving set 8, respectively;

The operation of the embodiment of my invention, further than has beendescribed in the foregoing, is given in whatfollows:

The person'who operates the. projection machine positions himself infront of the housing'l, so that he has access to the keyboard 12 and thecontrolling elements adjacent thereto.

Referring to Fig. 1, the projectors 64, 65, 66, 119, 118 and 81 in thehousing 1 are adjusted with reference to direction, by means a of theknobs 48, 46, 44, 49, 47, and 45, respectively, sothat overlappinglightbeams are projected upon the screen 2. The rotary color screens,then, intercepting the path of these light beams at different rotatingspeeds, will cause these beams to be of variant colors which change at arate which is not uniform, the overlapping portions of the beams beingof colors which are result'ants of the superimposed colors. The proectors may be individually turned on and oil', and regulated as tointensity of light beam projection, by the associated rheostats. Toproject these beams upon the screen 2, it is necessary to raise theshutters 176 associated with each of the manual colorscreen housings, bymeans of the knob 192, so that the light beams can be projected throughthe same. In addition to the variant colors obtainable by interceptingthe light beams with the rotary color screens,'further effects can beobtained by manipulating the manual color screens by means of thekeyboard12 so as to selectively choose any one or more of the said colorscreens and intercept the light beams therewith.

To project, upon the screen 2, light beams the colors of which areentirely determined by manual operation, it is necessary to stop therotation of the rotary color screens, by turning the knob 160, and openthe moveable color sector in each of the same so that white light canpass through without being filtered. At the same time, the shutters 176associated with each of the manual color screen housings except when amanual color screen is raisedto intercept the light. The operator canthen .control the color efli'ects entirely by manipulation of thekeyboard 12.

Inasmuch as more than one color screen may simultaneously intercept thelight beam from one projector, it is thereby possible to obtain othersuperimposed color combinations, in addition to those 'producedby theoverlapping colored light beams.

When white light beams are being projected through the manual colorscreen housings, the shutters 17 6 may be raised,.b means of the knob192, and special color e ects obtained, without employing either therotary color screens or manual color screens, by regulating therheostats associated with each projector so as to vary the intensity ofthe light beams projected through the color screens 177 (See Fig. 8.)'Inasmuch as the color screens 177 associatedwith the several manualcolor screens housings are primary colors which are intended to filterthe white light beams in a manner such that upon convergence they willagain form white light, it

is evident that if the intensities of these white" light beams bevaried, the component primary colors will be unbalanced so as todecrease or increase one or more of the colors to produce delicate tintsand fine gradations and variations of color shading.

To produce unusual and extremely varied color shapes upon the screen 2,the distorting lens, in compartment 77 in Fig. 2, may be set in motionby starting the associated driving motor. The variant colored lightbeams intercepted thereby will then be continually distorted.

The kaleidoscopic projection arrangement in compartment 7 8 may also bebrought into use by closing the circuits to' the associated lamps anddriving motor. A great variety of moving geometric patterns,corresponding in shape and color to the objects placed upon thekaleidoscopic transparent platform, will be projected upon the screen 2.

The pattern machine 3 and the associated shielding 50, in Fig. 1, areadapted to be readily positioned for operation when desired by theoperator. The pattern may then be used 111 a stationary position, or theassociated driving motor may be started so as to move the pattern acrossthe path of the variant colored light beams, intercepting the same inaccordance with the design of the pattern. It is obvious that two ormore of these .pattern machines can be used simultaneously to interceptand define the variant colored light beams, the patterns running in thesame direction, or in opposite directions, at the same, or differentrelative speeds.

The object supporting turntable 4 is also adapted to be readilypositioned for operation when desired by the operator. Objects of anyshape or form may then be placed upon the said turntable and used in astationary position, or rotated .by the associated driving motor, tointercept the variant colored light beams, at variant angles, to form agreat variety of shapes and shadows upon the screen 2.

All of the driving motors are selectlvely controlled so that they may bestarted and stopped at will and varied as to speed of rotation.Consequently, any of the elements which are driven by motors may beindividually and selectively. controlled as to relative speed, or usedstationary. In the event-that an especially desirable color or patternis cast upon the screen, the driving motors can be' by means of which itis possible to reverse the order of formation of colors and patterns,thereby making it possible to cause the immediate return of anyespecially desirable color or pattern which has beenreplaced by otherformations before it has been possible to stop the driving motors, I

Simultaneous with the formation of color efiect-s and patterns on thescreen 2, it is possible to produce accompanying sound effects, whichmay be of anature sympathetic to the color effects, through theagency-ofthe loud speaker 10 which can be selectively connected to either theelectrical honograph 9, or the radio receiving set 8. t the same time,the variant colored light beams will be rhythmically affected as tointensity by light intercepting devices, positioned upon each projector,which are actuated in accordance with the modulated audiofrequency'currents from the radio receiving set.

The embodiment of applicants invention hereinbefore described respectingsound accompanying effects and varying the intensity of light by audiofrequency currents obtained from a radio receiver, involving features asdisclosed in Figs. 2, 3, 4. and 12 and a portion of Fig. 18, is claimedin applicants co-pending divisional application Serial No. 533,940,filed April 30, 1931.

Permanent records of the color effects and patterns may be made by theemployment of any of t e commonly used methods of al color formations,the moving elements may be stopped, as hereinbefore provided, and acolor photograph made of the screen 2, whereas, if a continuous recordof all of the effects presented to the eye is desired, a color motionpicture may be made of the same.

In Fig. 19, a diagonal row of projectors 402, 404, 408, of a group ofnine projectors 400, 401, 402, 403,404, 405, 406, 107, 408, in. Fig. 20,which is the normal arrangement of the projectors in a preferredembodiment

